10 TerraPower engineering leaders
Mark Werner, Vice President, Plant Delivery, Natrium, is the most senior of these TerraPower engineering leaders, who also include chief engineers for design authority, plant and component design, thermal mechanical design and thermal hydraulics, and Natrium engineering directors. A reader can learn how engineering leaders work at TerraPower from people who have held the role.
Professionals to explore
Brian Koons, PE
LinkedInExperience: Director, Engineering - Natrium · TerraPower
Brian Koons has been Director, Engineering - Natrium at TerraPower since February 2026, based in Chapin, South Carolina, and lists experience across engineering management, project management, design and analysis, much of it nuclear. Brian Koons lists Manager, Design Engineering and Plant Modifications at Westinghouse Electric Company since 2019 and was Manager Design Engineering at Covia from 2017 to 2019.
David Bankston, PE
LinkedInExperience: Director of Engineering Strategy and Integration, Natrium · TerraPower
David Bankston has been Director of Engineering Strategy and Integration, Natrium at TerraPower since April 2026, based in the Greater Seattle Area. At TerraPower David Bankston was Director of Engineering, MCFR from 2024 to 2026, Mechanical Design Manager, MCFR from 2022 to 2024 and Mechanical Design Structural Analysis Manager in 2022, and was Lead Analyst at Bechtel Corporation from 2015 to 2022.
Eric Williams
LinkedInExperience: Vice President of Engineering · TerraPower
Eric Williams was Vice President of Engineering at TerraPower from July 2020 to January 2023, Director Of Engineering there from 2018 to 2020, Senior Vice President there from 2023 to 2025 and Chief Operating Officer there from 2025 to August 2026. Eric Williams has been Executive Vice President of Engineering at Hadron Energy, Inc. since August 2026.
Jon McWhirter
LinkedInExperience: Chief Engineer Thermal-Hydraulics · TerraPower
Jon McWhirter has been Chief Engineer Thermal-Hydraulics at TerraPower since March 2025, based in Bellevue, Washington. At TerraPower Jon McWhirter was Sr Manager MCFR Thermal-Hydraulics from 2019 to 2025, Principal Engineer from 2014 to 2019 and Senior Engineer from 2007 to 2014.
Mark Oakley, PE
LinkedInExperience: Senior Director Site Engineering Natrium Project · TerraPower
Mark Oakley has been Senior Director Site Engineering Natrium Project at TerraPower since February 2026, based in the Greater Seattle Area. Mark Oakley was Senior Integrated Product Team Lead at Blue Origin from 2023 to 2026, Lead Propulsion Engineer for Integration and Test at Northrop Grumman from 2017 to 2023 and Director of Engineering at Westinghouse Electric Company from 2010 to 2017.
Mark Werner
LinkedInExperience: Vice President, Plant Delivery, Natrium · TerraPower
Mark Werner has been Vice President, Plant Delivery, Natrium at TerraPower since April 2024, based in Bellevue, Washington. At TerraPower Mark Werner was Director of Plant Delivery, Natrium from 2022 to 2024, Deputy Director of Engineering, Natrium from 2021 to 2022, Manager, Reactor Mechanical Design from 2018 to 2021 and Core Mechanical Design Lead from 2016 to 2018.
Michael Cohen
LinkedInExperience: Director, Nuclear Island Systems and Components · TerraPower
Michael Cohen was Director, Nuclear Island Systems and Components at TerraPower from May 2025 to August 2026, based in Seattle, Washington. At TerraPower Michael Cohen was Senior Manager of Engineering Analysis from 2022 to 2025, Mechanical Design Manager from 2019 to 2022 and Manager, Engineering Analysis from 2010 to 2018.
Michael Edwards
LinkedInExperience: Chief Engineer, Thermal Mechanical Design · TerraPower
Michael Edwards has been Chief Engineer, Thermal Mechanical Design at TerraPower since July 2022, based in Bellevue, Washington. Michael Edwards was Manager, Mechanical Design at TerraPower from 2018 to 2022, Nuclear Equipment Design Manager in Engineering Analysis there from 2015 to 2018 and B&W mPower Manager, Component Design at The Babcock & Wilcox Company from 2010 to 2014.
Steven Unikewicz
LinkedInExperience: Chief Engineer, Plant Engineering Design Authority · TerraPower
Steven Unikewicz has been Chief Engineer, Plant Engineering Design Authority at TerraPower since January 2022. Steven Unikewicz is a Fellow of ASME (The American Society of Mechanical Engineers), has served on the ASME Board on Nuclear Codes and Standards since 2015 and has been a member of ASME Qualification of Mechanical Equipment QME-1 since 2023.
Tamás Liszkai
LinkedInExperience: Chief Engineer, Plant and Component Design Natrium · TerraPower
Tamás Liszkai has been Chief Engineer, Plant and Component Design Natrium at TerraPower since July 2024 and lists Deputy Design Authority there since September 2022, based in Corvallis, Oregon. Tamás Liszkai was Principal Engineer, Mechanical Design at TerraPower in 2022, Chief Engineer, Design and Structures at NuScale Power from 2018 to 2022 and Director, Design Engineering there from 2017 to 2018.
Choose the right perspective
Match the person's area, whether reactor and component design, thermal hydraulics, design authority, site and plant engineering or project delivery for Natrium, to the decision you face. Check when each person's role started and whether it has ended, to judge how close their view is to your question.
Questions to take into the conversation
- 01What did you focus on first when you took on your engineering role?
- 02How do you balance new technology work against delivery commitments?
- 03What have you learned about bringing together engineers with different technical backgrounds?
Reaching TerraPower engineering leaders
How can I contact one of these TerraPower engineering leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: TerraPower, based on profile data retrieved on October 24, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach TerraPower engineering leaders?
You choose the offer, starting at $5 per person. The offer is what the person receives, and Instant Expert's fee is added on top, so a $100 offer costs you $125. The fee is 20% of what you pay. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
Can an AI agent ask one of these TerraPower engineering leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
Request a correction or removal